CN218733347U - Electronic equipment circuit with power saving effect - Google Patents
Electronic equipment circuit with power saving effect Download PDFInfo
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- CN218733347U CN218733347U CN202222904688.9U CN202222904688U CN218733347U CN 218733347 U CN218733347 U CN 218733347U CN 202222904688 U CN202222904688 U CN 202222904688U CN 218733347 U CN218733347 U CN 218733347U
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Abstract
The utility model discloses an electronic equipment circuit with electricity-saving effect, which comprises a main control circuit, a voltage stabilizing circuit, a storage and transportation mode quitting circuit, a battery circuit and a power supply protection circuit; the positive pole of the battery circuit is connected with the positive pole of the main control circuit through the voltage stabilizing circuit, and the battery ground of the battery circuit is connected with the equipment ground of the main control circuit through the power supply protection circuit; a control signal pin is arranged between the main control circuit and the power supply protection circuit, and sends a control signal to control the equipment to enter a storage and transportation mode; the battery circuit supplies power to the electronic equipment through the voltage stabilizing circuit; the storage and transportation mode quitting circuit is arranged between the battery ground of the battery circuit and the equipment ground of the main control circuit and is used for quitting the storage and transportation mode. And setting a power supply protection circuit to determine whether to connect a battery ground of a battery circuit in the electronic equipment with a device ground of the main control circuit to form a loop or not, and controlling to enter or exit the storage and transportation mode. Therefore, the battery power of the equipment in the long-time transportation and storage process is saved, and the influence on the use of the equipment caused by the failure of the battery is avoided.
Description
Technical Field
The utility model relates to an electronic equipment field especially relates to an electronic equipment circuit with economize on electricity effect.
Background
Due to the application scene of electronic products and the requirement of mobility, batteries are widely applied to various electronic products, and in consideration of product design and user experience, many electronic devices powered by batteries are not provided with special power switches, so that the electronic devices usually need to enter a storage and transportation mode after production in a factory is completed. The storage and transportation mode, i.e. the mode with the lowest power consumption, is mainly used to reduce the leakage current of the battery. The storage and transportation mode is adopted to improve the storage and transportation safety of the equipment, prevent the starting caused by accidents in the storage and transportation process, simultaneously reduce the loss of the electric quantity of the battery in the storage and transportation process, consume as little power as possible or even not consume power, achieve longer standby and endurance time and meet the requirement of long-time storage and transportation.
At present, for electronic equipment with a storage and transportation mode, the setting for exiting the storage and transportation mode is mainly based on whether the electronic equipment is plugged with a charger, which is not friendly enough for equipment using a disposable battery, so that a circuit which can give consideration to charging or the disposable battery used by the electronic equipment and has a simple and effective activation mode is urgently needed.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide an electronic device circuit with power saving effect, which exits from the storage and transportation mode circuit and the power supply protection circuit through the setting to protect the battery in the electronic device, and control the switching control between the storage and transportation mode and the normal working state, thereby reducing the power consumption.
The utility model discloses a first aspect provides an electronic equipment circuit with power saving effect, the electronic equipment circuit with power saving effect includes master control circuit, voltage stabilizing circuit, withdraws from warehousing and transportation mode circuit, battery circuit and power supply protection circuit;
the positive electrode of the battery circuit is connected with the positive electrode of the power supply protection circuit and the positive electrode of the main control circuit through the voltage stabilizing circuit, and the battery ground of the battery circuit is connected with the equipment ground of the main control circuit through the power supply protection circuit;
a control signal pin is arranged between the main control circuit and the power supply protection circuit and used for sending a control signal to enable the electronic equipment to enter a storage and transportation mode;
the battery circuit supplies power to the electronic equipment through the voltage stabilizing circuit;
the circuit for quitting the storage and transportation mode is arranged between a battery ground of the battery circuit and a device ground of the main control circuit, and the circuit for quitting the storage and transportation mode is in a disconnected state by default;
and when the storage and transportation mode exiting circuit has a closed trigger operation or the battery circuit has a charging trigger operation, the electronic equipment exits the storage and transportation mode.
Optionally, when the circuit for exiting the storage mode is triggered from the non-closed state to the closed state, and the closed state is recovered to the non-closed state after lasting for a preset time, the battery ground and the device ground are recovered to be connected.
Optionally, the battery circuit comprises a battery and a charging circuit;
the positive electrode of the battery and the battery ground are connected with the positive electrode and the negative electrode of the power supply protection circuit; one end of the charging circuit is connected with the anode of the battery, and the other end of the charging circuit is connected with the equipment ground.
Optionally, the battery comprises a rechargeable battery and a disposable battery;
the positive electrode of the rechargeable battery and the battery ground are connected with the positive electrode and the negative electrode of the power supply protection circuit; one end of the charging circuit is connected with the anode of the rechargeable battery, and the other end of the charging circuit is connected with the equipment ground;
the positive electrode of the disposable battery and the battery ground are connected with the positive electrode and the negative electrode of the power supply protection circuit.
Optionally, the power supply protection circuit is composed of a chip with a lithium battery protection function.
Optionally, the chip includes a first ground pin, a second ground pin, a control pin, and a power pin;
the first grounding pin is connected with the negative electrode of the battery, and the second grounding pin is connected with the equipment ground;
the storage and transportation mode quitting circuit is arranged between the equipment ground and the first grounding pin;
the control pin is connected with the control end of the main control circuit, and the power supply pin is connected with the anode of the battery.
Optionally, the power supply protection circuit further includes a resistor and a capacitor;
the resistor is arranged between the power supply pin and the positive electrode of the battery, and the capacitor is arranged between the first grounding pin and the positive electrode of the battery.
Optionally, the battery circuit includes a charging interface circuit, an anode of the charging interface circuit is connected to an anode of the battery, and a cathode of the charging interface circuit is connected to the device ground.
Optionally, the charging circuit includes a charging control circuit and a charging detection circuit;
the charging control circuit is connected with the battery, and the charging detection circuit is arranged between the charging control circuit and the charging detection circuit.
Optionally, the charging interface circuit includes at least one of a USB interface circuit and a Type-C interface circuit.
Has the advantages that:
in the technical scheme of the utility model, the electronic equipment circuit with the power saving effect comprises a main control circuit, a voltage stabilizing circuit, a storage and transportation mode quitting circuit, a battery circuit and a power supply protection circuit; the positive pole of the battery circuit is connected with the positive pole of the main control circuit through the voltage stabilizing circuit, and the battery ground of the battery circuit is connected with the equipment ground of the main control circuit through the power supply protection circuit; a control signal pin is arranged between the main control circuit and the power supply protection circuit and used for sending a control signal to enable the electronic equipment to enter a storage and transportation mode; the battery circuit supplies power to the electronic equipment through the voltage stabilizing circuit; the storage and transportation mode quitting circuit is arranged between the battery ground of the battery circuit and the equipment ground of the main control circuit and is used for quitting the storage and transportation mode. The power supply protection circuit is arranged to determine whether to connect or disconnect a battery in the electronic equipment into or from the battery circuit, namely, the electronic equipment is controlled to enter or leave the storage and transportation mode. Therefore, the battery power of the equipment in the long-time transportation and storage process is saved, and the influence on the use of the equipment caused by the failure of the battery is avoided.
Drawings
Fig. 1 is a schematic diagram of a first structure of an electronic device circuit with power saving effect according to the present invention;
fig. 2 is a schematic diagram of a second structure of an electronic device circuit with power saving effect according to the present invention;
fig. 3 is a schematic diagram of the power supply protection circuit provided by the present invention.
Detailed Description
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," or "having," and any variations thereof, are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the utility model provides an electronic equipment circuit with power saving effect, through increase a hardware circuit design in electronic equipment, adopt the chip that has lithium electricity protect function, be in a special warehousing and transportation mode after making equipment produce, can compromise rechargeable battery and disposable battery's use, electronic equipment is after getting into warehousing and transportation mode, battery and actual circuit disconnection, equipment leakage current is in extremely low state itself; when the equipment needs to work normally, the battery can be connected into the battery circuit again through the activation operation, and the equipment enters a normal working state.
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-3, fig. 1 is a schematic structural diagram of an electronic device circuit with power saving effect provided in the present invention, the electronic device circuit with power saving effect includes a main control circuit 110, a voltage stabilizing circuit 120, an exiting storage and transportation mode circuit 130, a battery circuit 140 and a power supply protection circuit 150;
the positive electrode of the battery circuit 140 is connected to the positive electrode of the power supply protection circuit 150 and the positive electrode (device positive electrode) of the main control circuit 110 through the voltage stabilizing circuit 120, and the negative electrode of the battery circuit 140 is connected to the device ground of the main control circuit 110 through the power supply protection circuit 150; the battery is usually 4.2V, and is converted into an operating voltage of the electronic device, such as 3.7V, by the voltage regulator circuit 129, so as to ensure that the device operates normally.
A control signal pin is arranged between the main control circuit 110 and the power supply protection circuit 150 and is used for sending a control signal to enable the electronic equipment to enter a storage and transportation mode; the control signal is a specific pulse signal, and in order to avoid false triggering, the specific pulse signal is a group of waveform signals with appointed time sequence.
The battery circuit 140 supplies power to the electronic device through the voltage stabilizing circuit 120;
the storage and transportation mode quitting circuit 130 is arranged between the cathode of the battery circuit 140 and the equipment ground of the main control circuit 110, and the storage and transportation quitting circuit 130 is in a disconnected state by default; the specific circuit 130 for exiting the storage and transportation mode may be a key circuit, which mainly comprises a clear key and is in a disconnected state by default.
When the storage and transportation mode exiting circuit 130 has a closed trigger operation or the battery circuit 140 has a charging operation, the electronic device exits the storage and transportation mode. Specifically, when the exiting warehousing and transportation mode circuit 130 is triggered from the non-closed state to the closed state and returns to the non-closed state after the closed state lasts for a preset time, the battery ground and the device ground are restored to be connected. The preset time is set through signal trigger control experience of the circuit, namely, the preset time is set by key trigger, and is generally not more than 1 second, and can also be the shortest scanning period of a pulse, such as 0.1 second. The same is true for the charging operation.
In practical application, the positive electrode of the main control circuit 110 is connected to the voltage stabilizing circuit 120, and the control end of the main control circuit 110 is connected to the power supply protection circuit 150;
the positive electrode and the negative electrode of the power supply of the voltage stabilizing circuit 120 are connected with the positive electrode and the negative electrode of the power supply protection circuit 150; the negative electrode of the power supply of the voltage stabilizing circuit 120 is connected with the negative electrode of the power supply protection circuit 150 through the storage and transportation mode exiting circuit 130, and the negative electrode of the power supply of the voltage stabilizing circuit 120 is connected with the equipment ground of the electronic equipment;
the battery circuit 140 is connected in parallel with the power supply protection circuit 150;
in the state that the electronic device is in the storage and transportation mode, if the circuit 130 for exiting the storage and transportation mode is triggered or the battery circuit 140 is in the charging state, the electronic device exits the storage and transportation mode.
Therefore, the storage and transportation mode quitting circuit and the power supply protection circuit are arranged in the electronic equipment to protect the battery in the electronic equipment and control the electricity consumption between the storage and transportation mode and the normal working state.
In practical applications, when the electronic device needs to be transported after production is completed, the main control circuit 110 is operated to output a first control signal in a storage mode to the power supply protection circuit 150, so that the electronic device operates in the storage mode, and the storage mode keeps a continuous output operating voltage of the battery circuit 140 in the electronic device, so as to maintain low-power operation of the electronic device. When it is detected that the battery circuit 140 is in the charging state or the storage and transportation mode exiting circuit 130 is triggered, the control electronics outputs a second control signal to exit the storage and transportation mode.
In the present embodiment, as shown in fig. 2, the battery circuit 140 includes a battery 141 and a charging circuit 142; the battery 141 may be a rechargeable battery or a disposable battery, and the charging circuit 142 is actually a charging management circuit for detecting whether there is a charging operation. The charging circuit 142 is used when a rechargeable battery is used, and a wireless or wired charging mode can be selected.
The battery 141 includes a rechargeable battery and a disposable battery;
the positive electrode of the rechargeable battery and the battery ground are connected with the positive electrode and the negative electrode of the power supply protection circuit 150; one end of the charging circuit 142 is connected with the anode of the rechargeable battery, and the other end is connected with the equipment ground;
the positive electrode of the disposable battery and the battery ground are connected with the positive electrode and the negative electrode of the power supply protection circuit 150.
If the electronic device is a rechargeable battery, the electronic device can further include a change-over switch, the change-over switch is used for switching the electronic device to work by using the rechargeable battery or the disposable battery, that is, the rechargeable battery and the disposable battery can be set in the present application, and certainly, the disposable battery can also be replaced by the rechargeable battery, but after the change-over switch is connected to the charging circuit 142, so as to switch and control the electronic device to use the rechargeable battery for power supply and charging, so that the low-power-consumption bluetooth device using the rechargeable battery can be supported, and the electronic device is also suitable for the low-power-consumption bluetooth device using the disposable battery, and the application range is wider.
Further, the positive electrode and the negative electrode of the battery 141 are connected with the positive electrode and the negative electrode of the power supply protection circuit 150; the charging circuit 142 has one end connected to the positive electrode of the battery 141 and the other end connected to the device ground. Specifically, the battery 141 is connected with a power supply protection circuit 150; the battery 141 supplies power to the electronic device through the voltage stabilizing circuit 120; an exit storage and transportation mode circuit 130 is provided between the device ground and the negative terminal of the battery 141 (i.e., battery ground) and is off by default for exiting storage and transportation mode. A communication pin is also connected between the electronic device and the power supply protection circuit 150 for sending a control signal to cause the device to enter a storage and transportation mode.
The positive electrode of the battery 141 is connected to the positive electrode of the device circuit, and the negative electrode of the battery 141 (i.e., the battery ground) is connected to the device ground through the power supply protection circuit 150. When in the warehousing mode, the battery ground of battery 141 is disconnected from the device ground, so there is little leakage current. When the electronic device is activated to enter the normal operation mode, the battery ground of the battery 141 is connected to the device ground through the power supply protection circuit 150 to form a loop, and the device can operate at normal power-on.
In practical application, if the electronic device uses charging to supply power, the charging circuit 142 detects whether the battery circuit 140 is charging, and when the rechargeable battery is used, the electronic device can be charged to exit the storage and transportation mode; when the disposable battery is used, the storage and transportation mode can be exited by exiting the storage and transportation mode circuit 130, pressing a key in the button circuit 130 to momentarily short-circuit the battery ground of the battery 141 and the equipment ground and then releasing the key.
In the present embodiment, the charging circuit 143 includes a charging control circuit and a charging detection circuit; the charging control circuit is connected with the battery 141, and the charging detection circuit is arranged between the charging control circuit and the charging detection circuit.
Further, the battery circuit 140 includes a charging interface circuit 143, a positive electrode of the charging interface circuit 143 is connected to a positive electrode of the battery 141, and a negative electrode of the charging interface circuit 143 is connected to the device ground.
When the disposable battery is used, the button is pressed to instantly short-circuit the battery ground and the equipment ground and then loosen the battery ground and the equipment ground in a mode of pressing the button, and the storage and transportation mode can be quitted, namely the battery ground is connected with the equipment ground, and the equipment is normally powered on for use. Specifically, the function of the storage and transportation mode exiting circuit 130 is to generate a physical signal, and the power supply protection circuit 150 is an actual device ground operation, that is, after the storage and transportation mode exiting circuit 130 generates a close trigger signal, the power supply protection circuit 150 will implement a short circuit operation of the battery ground and the device ground in its internal circuit based on the trigger signal, and the short circuit operation is actually a recovery of the internal circuit of the power supply protection circuit 150 from being disconnected.
In practical application, the specific control of the electronic equipment to enter the storage and transportation mode and to exit the storage and transportation mode is as follows:
1) Entering a storage and transportation mode
After the electronic device is assembled, when the electronic device is powered on for the first time, the electronic device sends a specific pulse signal to the power supply protection circuit 150 to trigger the power supply protection circuit 150 to enter a storage and transportation mode. To avoid false triggering, the specific pulse signal is a set of waveform signals with a predetermined timing. After receiving the pulse signal, the power supply protection circuit 150 disconnects the power supply loop of the battery 141 through the internal circuit, i.e., the battery ground of the battery 141 and the device ground are disconnected, and stops supplying power to the electronic device, so that the electronic device enters a storage and transportation mode, and the power consumption is extremely low.
2) And exiting the storage and transportation mode.
When the rechargeable battery is used, the protection of the battery 141 can be unlocked only by connecting an external power supply to charge the electronic equipment, namely, the battery ground of the battery 141 is connected with the equipment ground, the storage and transportation mode is exited, and the equipment is normally powered on for use.
Further, the power supply protection circuit 150 is composed of a chip 151 having a lithium battery protection function. The chip 151 includes a first ground pin, a second ground pin, a control pin, and a power pin; the first ground pin is connected to the negative terminal of the battery 141, and the second ground pin is connected to the device ground; the circuit 130 for exiting storage and transportation mode is arranged between the equipment ground and the first grounding pin; the control pin is connected to the control end of the main control circuit 110, and the power pin is connected to the positive electrode of the battery 141.
The power protection circuit 150 further includes a resistor R1 and a capacitor C1;
the resistor R1 is disposed between the power pin and the positive electrode of the battery 141, and the capacitor C1 is disposed between the first ground pin and the positive electrode of the battery 141.
As shown in fig. 3, the power supply protection circuit 150 is mainly composed of a chip 151 having a lithium battery protection function. The power pin (VDD pin) of the chip 151 is connected to the positive terminal of the battery 141, and the chip 151 has two grounds: the first ground pin GND is connected to the negative terminal of the battery 141 (i.e., the battery ground of the battery 141), and the second ground pin VM is connected to the device ground. The CNT pin is a control pin and is used for receiving a control signal of the electronic equipment; the positive electrode (P +) of the battery 141 is connected with the power supply of the electronic device; the VM pin (P-) is used for connection to the device ground, and an exit warehousing and transportation mode circuit 130, which is in an off state by default, is connected between the negative pole of the battery 141 and the VM pin.
The chip 151 with the lithium battery protection function, an internal circuit between the GND and the VM pins of the chip 151 can be automatically disconnected or connected according to external conditions, and the following functions can be realized by utilizing the characteristics of the chip 151:
when an over-voltage/over-current condition is detected, the internal circuit of the chip 151 is cut off, so as to cut off the power supply loop of the battery 141, i.e. the battery ground of the battery 141 and the device ground are cut off, thereby protecting the electronic device.
When the battery 141 is under-voltage, the internal circuit of the chip 151 is automatically turned off to cut off the power supply loop of the battery 141, i.e. the battery ground and the equipment ground of the battery 141 are disconnected, thereby protecting the battery 141.
When the CNT control pin receives an external control signal, the internal circuit of the chip 151 is automatically turned off, the power supply loop of the battery 141 is cut off, that is, the battery ground of the battery 141 and the equipment ground are disconnected, power supply to the equipment is stopped, and the equipment enters a storage and transportation mode.
By activating an operation, such as charging or exiting the storage mode circuit, the internal circuitry of chip 151 is turned back on from off, i.e., the battery ground of battery 141 is connected to the device ground, battery 141 is reconnected to the circuit, the storage mode is exited, and the device is in normal use.
To sum up, the utility model discloses make full use of lithium electricity protect function's chip characteristic has realized the power consumption control to electronic equipment, prevents that excessive pressure, overflow, circumstances such as under-voltage from taking place, simultaneously, can make equipment get into storage and transportation mode through the mode that sends specific pulse to the control pin of equipment when equipment dispatches from the factory to support bluetooth low energy equipment to use chargeable call or disposable battery. When the equipment needs to exit the storage and transportation mode: 1) The rechargeable battery is used for charging the equipment, the internal circuit of the battery protection module is conducted, the storage and transportation mode is exited, and the equipment can be powered up normally for use; 2) When the disposable battery is used, the key is pressed down, the internal circuit of the battery protection module is conducted, the storage and transportation mode is exited, and the equipment can be powered up normally for use.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. An electronic equipment circuit with a power saving effect is characterized in that the electronic equipment circuit with the power saving effect comprises a main control circuit, a voltage stabilizing circuit, a storage and transportation mode quitting circuit, a battery circuit and a power supply protection circuit;
the positive electrode of the battery circuit is connected with the positive electrode of the power supply protection circuit and the positive electrode of the main control circuit through the voltage stabilizing circuit, and the battery ground of the battery circuit is connected with the equipment ground of the main control circuit through the power supply protection circuit;
a control signal pin is arranged between the main control circuit and the power supply protection circuit and used for sending a control signal to enable the electronic equipment to enter a storage and transportation mode;
the battery circuit supplies power to the electronic equipment through the voltage stabilizing circuit;
the circuit for quitting the storage and transportation mode is arranged between a battery ground of the battery circuit and a device ground of the main control circuit, and the circuit for quitting the storage and transportation mode is in a disconnected state by default;
and when the storage and transportation mode exiting circuit has a closed trigger operation or the battery circuit has a charging trigger operation, the electronic equipment exits the storage and transportation mode.
2. The power saving electronic device circuit of claim 1, wherein the battery ground and the device ground are reconnected when the exit storage mode circuit is triggered from a non-closed state to a closed state and the closed state is restored to the non-closed state after a preset time.
3. The electronic device circuit with power saving effect of claim 1, wherein the battery circuit comprises a battery and a charging circuit;
the positive electrode of the battery and the battery ground are connected with the positive electrode and the negative electrode of the power supply protection circuit; one end of the charging circuit is connected with the anode of the battery, and the other end of the charging circuit is connected with the equipment ground.
4. The electronic device circuit with power saving effect according to claim 3, wherein the battery includes a rechargeable battery and a disposable battery;
the positive electrode of the rechargeable battery and the battery ground are connected with the positive electrode and the negative electrode of the power supply protection circuit; one end of the charging circuit is connected with the anode of the rechargeable battery, and the other end of the charging circuit is connected with the equipment ground;
the positive electrode of the disposable battery and the battery ground are connected with the positive electrode and the negative electrode of the power supply protection circuit.
5. The electronic device circuit with power saving effect as claimed in claim 4, wherein the power supply protection circuit is composed of a chip with lithium battery protection function.
6. The electronic device circuit with power saving effect of claim 5, wherein the chip comprises a first ground pin, a second ground pin, a control pin and a power supply pin;
the first grounding pin is connected with the negative electrode of the battery, and the second grounding pin is connected with the equipment ground;
the storage and transportation mode quitting circuit is arranged between the equipment ground and the first grounding pin;
the control pin is connected with the control end of the main control circuit, and the power supply pin is connected with the anode of the battery.
7. The electronic device circuit with power saving effect of claim 6, wherein the power supply protection circuit further comprises a resistor and a capacitor;
the resistor is arranged between the power supply pin and the positive electrode of the battery, and the capacitor is arranged between the first grounding pin and the positive electrode of the battery.
8. The circuit of any one of claims 5-6, wherein the battery circuit comprises a charging interface circuit, wherein an anode of the charging interface circuit is connected to an anode of the battery, and a cathode of the charging interface circuit is connected to the device ground.
9. The electronic device circuit with power saving effect according to claim 8, wherein the charging circuit includes a charging control circuit and a charging detection circuit;
the charging control circuit is connected with the battery, and the charging detection circuit is arranged between the charging control circuit and the charging detection circuit.
10. The electronic device circuit with power saving effect of claim 8, wherein the charging interface circuit comprises at least one of a USB interface circuit and a Type-C interface circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222904688.9U CN218733347U (en) | 2022-11-01 | 2022-11-01 | Electronic equipment circuit with power saving effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222904688.9U CN218733347U (en) | 2022-11-01 | 2022-11-01 | Electronic equipment circuit with power saving effect |
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| Publication Number | Publication Date |
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| CN218733347U true CN218733347U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222904688.9U Active CN218733347U (en) | 2022-11-01 | 2022-11-01 | Electronic equipment circuit with power saving effect |
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| Country | Link |
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| CN (1) | CN218733347U (en) |
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